Search a number
-
+
12001220013 = 35039793889
BaseRepresentation
bin10110010110101010…
…00001010110101101
31010222101102010220010
423023111001112231
5144034303020023
65302511443433
7603254454426
oct131325012655
933871363803
1012001220013
1150a9415252
1223ab226579
1311934a0c23
1481bc5864d
154a3912093
hex2cb5415ad

12001220013 has 8 divisors (see below), whose sum is σ = 16004822400. Its totient is φ = 7999215488.

The previous prime is 12001219987. The next prime is 12001220027. The reversal of 12001220013 is 31002210021.

12001220013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12001220013 - 213 = 12001211821 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12001220053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 381828 + ... + 412061.

It is an arithmetic number, because the mean of its divisors is an integer number (2000602800).

Almost surely, 212001220013 is an apocalyptic number.

It is an amenable number.

12001220013 is a deficient number, since it is larger than the sum of its proper divisors (4003602387).

12001220013 is an equidigital number, since it uses as much as digits as its factorization.

12001220013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 798931.

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 12001220013 its reverse (31002210021), we get a palindrome (43003430034).

The spelling of 12001220013 in words is "twelve billion, one million, two hundred twenty thousand, thirteen".

Divisors: 1 3 5039 15117 793889 2381667 4000406671 12001220013